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Category Archive for: ‘Featured’

Network Viz Ko1

Static and dynamic network visualization with R

[June 2017 update] This tutorial is continuously updated and expanded. The latest version includes additional information (more on multiplex graphs, interactive JS networks, geographic data, etc). If you want to see earlier versions, they are still available here: 2015 and 2016. You can also get the new tutorial PDF and code here or on GithHub. If you find the tutorial …

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Network Data

Network datasets

Since I started posting network tutorials on this site, people will occasionally write to ask me about the included example datasets. I also get e-mails from people asking where they might find network data to use for a project or in teaching. Seems like a good idea to post a quick reply here. The datasets included in my tutorials are …

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Gephi R Sunbelt2016

Sunbelt network visualization: R and Gephi tutorials

More details to follow, but for now: workshop materials from Sunbelt 2016.   Basic and Advanced Network Visualization with Gephi Sunbelt 2016 workshop materials Network visualization with Gephi: workshop handout (PDF) Network visualization with Gephi: example data files (ZIP)   Basic and Advanced Network Visualization with R Sunbelt 2016 workshop materials Network visualization with R: workshop handout (PDF) Network visualization …

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Igraph

Network analysis with R and igraph: NetSci X Tutorial

Get the tutorial PDF and code, or download on GithHub.

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Map Terms Rep Dem 05 Norm 2 Notxt

The world as seen in political statements

A new Politico post produced by our lab examines the mentions of countries around the globe in congressional documents. We look at the frequency of country mentions and co-occurrence. These numbers were extracted from political statements provided by VoteSmart. Here we post the data we used for those visualizations. The files below contain the frequency of country name occurrence and …

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Coal Congress4

Term co-occurrence in party documents: Network data from our Politico post

David Lazer, Oren Tsur, and I recently took a look at the use of the term “coal” in documents produced by members of the US Congress. Some numbers and visualizations based on this were published by Politico. Here, we post the data behind the network map of term co-occurrence in coal-related documents. The political statements these data were extracted from …

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PolitwoopsR Package

Deleted congressional tweets: the R code

[Update 15/04/02] If you were brought here by a Dean Richards Twitter bot, read this. A few days ago I published a post containing interactive visualizations with the deleted tweets of US politicians. Those tweets were collected by the Politwoops project, maintained in the US by the Sunlight Foundation. I promised people to post the R code that grabs the …

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Politwoops Deleted Tweets Featured

The Congress Tweets You Never Did See

[UPDATE 15/03/30] Check out this follow-up post to get the R code used to extract and clean the Politwoops & Twitter data. A package that automates the data collection is now available on GitHub: PolitwoopsR. For some months now, I’ve been playing with data from Politwoops: an international project that tracks politicians on Twitter and stores their deleted tweets for …

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Image Networks Gephi R Feat

Facebook data collection and photo network visualization with Gephi and R

Esteban Moro reminded me that there’s no need to manually rescale igraph layouts now – one can use layout.norm() instead (script updated accordingly). Hugle on GitHub Gist kindly pointed out a couple of sneaky typos – those are now fixed. Gephi is one of my favorite network visualization tools – it offers a wide variety of customizable layouts, allows for sophisticated …

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FCC Critical Information Needs of the American Public

Our FCC Briefing: Critical Information Needs of the American Public

In the last few months, I’ve been working with a great team of scholars putting together a study commissioned by the FCC. The project provides a critical review of existing research on the information needs of communities in the US. Major points include defining individual and community critical needs, examining the extent to which they are served by local media …

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